JPS6115084Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a slope reinforcement framework for ground slopes, and its purpose is to use a rectangular frame-like formwork unit that connects rectangular formwork plates. The object of the present invention is to provide a cast-in-place concrete legal framework with high workability and accurate shape and dimensions.

An embodiment of this invention will be described with reference to the drawings.

Figure 1 shows a formwork unit 4, in which formwork plates 1 made of elongated rectangular metal plates or the like are connected by a hinge-like connecting part 2 so as to be openable and closable. The board is opened and used like a folding screen, and can be folded up when not in use. Note that when the end of the formwork plate 1 is overlapped with the end of the formwork plate of another formwork unit and connected with bolts as shown in Fig. 2, bolt holes 3 are provided. As shown in FIG. 6, a large number of air holes 12 of the same size may be formed in parallel with the bolt holes 3.

Next, the state of concrete pouring of the legal framework using this formwork unit will be explained with reference to FIGS. 4 and 5. First, formwork unit 4 in the open state
erect the folding screen so that the hinge-like connecting parts 2 are located at the corners of the rectangular space 6, and then set the ends of the formwork unit so that the sides of the rectangular space 6 have the desired length. They are placed abutting or overlapping to form a rectangular space 6 surrounded by the formwork plates 1. When the ends of the formwork plates 1 are overlapped, they may be fastened together with bolts passing through the holes 3 of the formwork plates 1, and in order to make the overlapping of the formwork plates 1 easy and reliable, the method shown in Fig. 3 is used. A fitting protrusion 5 may be provided to fix the formwork plates to each other. In the drawings, the formwork plates of the formwork units constituting the rectangular space are shown opened at right angles, but they may be opened at any angle. The rectangular spaces 6 constituted by the formwork units 4 are combined and arranged in a grid on the ground slope 7 to form a concrete construction frame for constructing a grid-like slope. is fixed to the ground using a rod-shaped anchor 8 driven into the ground.

The shape of the lattice formed by the rectangular space 6 formed by the formwork plates 1 of the formwork unit 4 is, for example, a rectangular lattice shape or a diamond lattice shape. , a reinforcing bar cage consisting of hoop reinforcements 10, etc. is arranged, and the reinforcing bar cage is fixed to the formwork via spacers or by placing anchors in the ground.

Next, mortar or mortar 11 such as concrete is attached between the formwork plates 1 and 1 by spraying. After the mortar has hardened, the formwork unit 4 may be left as it is, or may be removed from the mold if necessary. Then, adding soil, vegetated soil, cobblestone filling, etc. are carried out between the constructed legal frameworks as usual.

According to this idea, the formwork unit can be folded, so it can be transported without being bulky, and since the formwork unit can be assembled like a folding screen, it is possible to assemble the formwork unit in the same way as a folding screen. Compared to formwork that is assembled and installed in units of plates, it can be installed more easily and accurately, and it also saves labor and reduces construction costs. In addition, if a large number of holes of arbitrary shape with a diameter of about 5 to 10 mm are formed in the formwork plate, when pouring shotcrete using a normal frame plate, compressed air and repellent material will be able to flow inside the formwork. However, this drawback has been overcome and it is now possible to place completely compacted concrete. In addition, by adding air holes, the weight of the formwork can be reduced, which further improves work safety and labor savings.The air holes can be overlapped by selecting the shape, size, and position and drilling them. It is also possible to use it as a fixing hole.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view of the formwork unit, Fig. 2 is a partial perspective view showing a connected state, Fig. 3 is a perspective view of a connecting part provided with a fitting part, and Fig. 4 is a perspective view of a construction state.
FIG. 5 is a cross-sectional view of the construction state, and FIG. 6 is a perspective view of a form board provided with an air vent. DESCRIPTION OF SYMBOLS 1...Form plate, 2...Form plate connecting side, 3...Connecting hole, 4...Formwork unit, 5...Form plate fitting protrusion, 6...Square space, 7... Rock slope, 8...
...Anchor, 9...Reinforcing bar, 10...Hoop bar, 1
1...Mortar, 12...Air release.

Claims (1)

[Scope of utility model registration request] A formwork unit formed by connecting one end of the elongated formwork plates so that they can be opened and closed using a foldable hinge-like connecting part is arranged so that the connecting part is located at a corner of the lattice-like space in an open state. Concrete is poured by placing reinforcing bars between the formwork plates of the lattice-like formwork, which is constructed by placing the other ends of the formwork plates against each other in the middle of the lattice-like space or overlapping and fixing them. A legal framework characterized by: